Bug 860842 - st reservation conflicts
Summary: st reservation conflicts
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.8
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Red Hat Kernel Manager
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-09-26 20:42 UTC by ThinkTank
Modified: 2023-09-14 01:37 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-02 13:16:03 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)

Description ThinkTank 2012-09-26 20:42:19 UTC
Description of problem:
This is specific to HP C Class blade systems. As soon as we create and enable a SAN fabric zone using 2 blades servers within the same HP blade chasis to tape drivers, we get -

 kernel: st 2:0:1:0: reservation conflict


Version-Release number of selected component (if applicable):

Linux Serverxxxx 2.6.18-308.1.1.el5 #1 SMP Fri Feb 17 16:51:01 EST 2012 x86_64 x86_64 x86_64 GNU/Linux

How reproducible:
Hardware/OS used: HP BL685c G7s in a HP flexfabric C7000 chassis on RH5U8 (OS).
San switch - Brocade 5300 ( 8GB)

Steps to Reproduce:
1. Zone a blade server in the HP blade chasis to a tape drive.
2. Zone a second blade server in the same HP blade chasis to the tape drive.
3. As soon as zone is enabled, we start seeing scsi reservation conflicts messages in the /var/log/messages file. This continues till the 2nd blade server is removed from the zoning.

Every 20 minutes , we see the following messages in the messages file.

Jun 12 10:46:49 srv1 kernel: st 2:0:1:0: reservation conflict
Jun 12 10:46:49 srv1 kernel: st1: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 10:46:49 srv1 kernel: st 2:0:4:0: reservation conflict
Jun 12 10:46:49 srv1 kernel: st4: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 10:46:49 srv1 kernel: st 2:0:6:0: reservation conflict
Jun 12 10:46:49 srv1 kernel: st6: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 10:55:18 srv1 ntpd[10669]: synchronized to 172.20.5.42, stratum 3
Jun 12 11:06:50 srv1 kernel: st 2:0:1:0: reservation conflict
Jun 12 11:06:50 srv1 kernel: st1: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 11:06:50 srv1 kernel: st 2:0:2:0: reservation conflict
Jun 12 11:06:50 srv1 kernel: st2: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 11:06:50 srv1 kernel: st 2:0:3:0: reservation conflict
Jun 12 11:06:50 srv1 kernel: st3: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 11:06:50 srv1 kernel: st 2:0:4:0: reservation conflict
Jun 12 11:06:50 srv1 kernel: st4: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 11:06:50 srv1 kernel: st 2:0:5:0: reservation conflict
Jun 12 11:06:50 srv1 kernel: st5: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 11:06:50 srv1 kernel: st 2:0:9:0: reservation conflict
Jun 12 11:06:50 srv1 kernel: st9: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Jun 12 11:13:22 xxx ntpd[10669]: synchronized to 172.20.5.41, stratum 3
Jun 12 11:26:50 srv1 kernel: st 2:0:9:0: reservation conflict
Jun 12 11:26:50 srv1 kernel: st9: Error 110018 (sugg. bt 0x0, driver bt 0x0, host bt 0x11).
Actual results:


Expected results:


Additional info:
This issue is only isolated in our case to the HP C class blade systems.

Comment 1 RHEL Program Management 2014-03-07 13:41:34 UTC
This bug/component is not included in scope for RHEL-5.11.0 which is the last RHEL5 minor release. This Bugzilla will soon be CLOSED as WONTFIX (at the end of RHEL5.11 development phase (Apr 22, 2014)). Please contact your account manager or support representative in case you need to escalate this bug.

Comment 2 RHEL Program Management 2014-06-02 13:16:03 UTC
Thank you for submitting this request for inclusion in Red Hat Enterprise Linux 5. We've carefully evaluated the request, but are unable to include it in RHEL5 stream. If the issue is critical for your business, please provide additional business justification through the appropriate support channels (https://access.redhat.com/site/support).

Comment 3 Red Hat Bugzilla 2023-09-14 01:37:42 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days


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